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Question - You have a mixture of Glycine, Lysine, and Glutamic acid that you want to separate by cation exchange chromatography. After binding to the column, you apply an increasing pH gradient to elute them (going from pH 0 to 14 for example). What is the order of elution of the amino acids (first, second, last)?
Gly, Glu, Lys
Gly, Lys, Glu
Lys, Gly, Glu
Glu, Gly, Lys
the density of diamond is 3.51 gcmnbsp . thenbsp international but non-si unit for weighingnbsp diamonds is the carat 1
The molarity of Ca2+ in a saturated solution of CaCO3 was determined to be 0.0000616 M. Calculate the solubility product constant (Ksp) for CaCO3. CaCO3 (s) Ca2+ (aq) + CO32- (aq) Molar Mass (g/mol) CaCO3 100.09
Calculate the concentration of CO3 2- in a solution prepared by dissolving 0.11 mol sample of H2CO3 in 475 mL of water.
write the lewis symbol for hydrogen sulfide, distributing the remaining valence electrons so that the hydrogen atoms are in accordance with the duet rule and the sulfur atom is in accordance with the octet rule.
Analytical molar concentrations of HA species 2) Equilibrium molar concentrations of HA species. Trichloroacetic acid (HA) is 73% ionized in water
Then use the estimate to calculate the heat of formation of ethanol from the heats of formation (in KJ/mol) of CO2: -?394, and H2O: -?242.
Calculate the heat released (kJ) in the reaction of 2.20 g of sulfur dioxide gas and excess oxygen gas to form sulfur trioxide gas
Problem- Calculate the final temperature of a mixture of 150.0 g of ice initially at -14.0C 371.5 g of water initially at 91.5C
A soln. of HCl has a specific gravity of 1.120 and contains 23.81% HCl by wt. How many grams and how many milliequivalents of HCl are present in each milliliter of the soln.?
a proton in a linear accelerator has a de broglie wavelength of 128 pmwhat is the speed of the
For the next three problems, consider 1.0 L of a solution which is 0.6 M NH4Cl and 0.2 M NH3 (Ka for NH4Cl = 5.6 x 10-10). Assume 2 significant figures in all of the given concentrations so that you should calculate all of the following pH values ..
What is ?H in kJ for the combustion of 2.86 L of benzene producing CO2(g) and H2O? Assume that the heat of combustion of benzene is -4.18 x 103 kJ/mol. Enter your answer with three significant figures in exponential format (1.23 x 104 = 1.23E4).
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